263245516056516 has 48 divisors (see below), whose sum is σ = 702021601733760. Its totient is φ = 75209408989440.

The previous prime is 263245516056503. The next prime is 263245516056631. The reversal of 263245516056516 is 615650615542362.

It is a super-2 number, since 2×263245516056516² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73140471 + ... + 76655198.

It is an arithmetic number, because the mean of its divisors is an integer number (14625450036120).

Almost surely, 2^{263245516056516} is an apocalyptic number.

It is an amenable number.

263245516056516 is an abundant number, since it is smaller than the sum of its proper divisors (438776085677244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

263245516056516 is a wasteful number, since it uses less digits than its factorization.

263245516056516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149816604 (or 149816602 counting only the distinct ones).

The product of its (nonzero) digits is 38880000, while the sum is 57.

The spelling of 263245516056516 in words is "two hundred sixty-three trillion, two hundred forty-five billion, five hundred sixteen million, fifty-six thousand, five hundred sixteen".